Computer real-time control method for monitoring temperature trend of aluminum cell

A real-time control and computer technology, applied in the field of automatic control of aluminum electrolytic cell production, can solve the problems of inability to monitor the superheating degree of electrolytic cell in real time, poor real-time performance of energy balance control, automatic control of aluminum electrolytic cell, etc. Real-time monitoring, reducing management intensity and difficulty
CN101280436AActive Publication Date: 2008-10-08四川启明星铝业有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
四川启明星铝业有限责任公司
Publication Date
2008-10-08

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Abstract

The invention discloses an aluminum electrolysis heat tendency computer real-time control method which can adapt the superheat or overcooling change of the tank circumstance in a wider range and monitor the superheat degree of the electrolytic tank in real time, which belongs to the automatic control field of the aluminum electrolysis. During the tank voltage analysis and control step, the tank voltage is analyzed in real time, the amplitude variable is calculated according to the voltage change curve, which comprises an instantaneous amplitude and an analysis cycle amplitude; and a target voltage control step is set, and the target voltage is adjusted between the setting voltage and the upper limit of the safety voltage according to the fluctuation situation of the tank voltage. In the invention, the amplitude variable is induced into the aluminium fluoride adding rate control step and the aluminium oxide adding rate control step, and the aluminium quantity planning step is set, to ensure the electrolytic tank to operate under the states of material balance and energy balance. The superheat degree can be controlled in real time through the aluminum electrolysis heat tendency computer real-time control method, to ensure the electrolytic tank to operate under the stable and highly effective state, and the management intensity and difficulty of the operator of the electrolytic tank to be reduced.
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Description

technical field

[0001] The invention relates to an automatic control method for the production of an aluminum electrolytic cell, in particular to a computer real-time analysis control method for the cold and heat trend of the aluminum electrolytic cell. Background technique

[0002] As we all know, in order to improve the utilization rate of the current efficiency of the aluminum electrolytic cell and implement stable control of the aluminum electrolytic cell, it is necessary to keep the control of the material balance and energy balance of the aluminum electrolytic cell as much as possible. Electrolyzer control includes two aspects: "material balance" and "energy balance" real-time coordinated control.

[0003] The material balance of the electrolytic cell refers to: the quality of the material added to the electrolytic cell and the existing amount of electrolyte and aluminum liquid = raw materials such as alumina, aluminum fluoride and anode are consumed according to the m...

Claims

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